What happened to LTag? Well, as everybody knows, the Unicode Technical
Committee strongly discourages the usage of these tags, to the point
were they were almost deprecated earlier this year. They are permitted
only in "special protocols," and are certainly frowned upon for use in
arbitrary plain text, which is what LTag was for. So, in an attempt to
restore some of my lost Unicode "street cred" I removed LTag from my
site. I still keep the program around, but only as a reference to ISO
639 and 3166 codes.

end quote

Well, whether the tags were (italics) almost (end italics) deprecated
earlier this year I do not know, yet the fact is that, after a lengthy and
extended Public Review process as to whether to deprecate them, the tags
were not deprecated but the situation was left broadly unaltered but with
some additional notes to be included in the Unicode 4.0 document.

It remains to observe what is to be put about tags in the Unicode 4.0 book.
Whether tags will be used in interactive broadcasting as a feature used in
(italics) some (end italics) content, such as with (italics) some (end
italics) generic file handling packages for distance education, remains for
the future, yet the option remains open.